[INFO] updating cached repository JohnHMoses/rBoy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JohnHMoses/rBoy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JohnHMoses/rBoy" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JohnHMoses/rBoy"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JohnHMoses/rBoy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JohnHMoses/rBoy" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JohnHMoses/rBoy"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JohnHMoses/rBoy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 930180c1b77773234c5caf153c9757860758263f
[INFO] sha for GitHub repo JohnHMoses/rBoy: 930180c1b77773234c5caf153c9757860758263f
[INFO] validating manifest of JohnHMoses/rBoy on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JohnHMoses/rBoy on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JohnHMoses/rBoy
[INFO] finished frobbing JohnHMoses/rBoy
[INFO] frobbed toml for JohnHMoses/rBoy written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JohnHMoses/rBoy/Cargo.toml
[INFO] started frobbing JohnHMoses/rBoy
[INFO] finished frobbing JohnHMoses/rBoy
[INFO] frobbed toml for JohnHMoses/rBoy written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JohnHMoses/rBoy/Cargo.toml
[INFO] crate JohnHMoses/rBoy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking JohnHMoses/rBoy against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JohnHMoses/rBoy:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f0acce9af2ffe80b1b70b8d84369e4df8fbcfcfc09ca799ab5728fe43f38c6e1
[INFO] running `"docker" "start" "-a" "f0acce9af2ffe80b1b70b8d84369e4df8fbcfcfc09ca799ab5728fe43f38c6e1"`
[INFO] [stderr]     Checking rboy v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::ByteAddressable`
[INFO] [stderr]  --> src/memory/tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::ByteAddressable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ByteReference`
[INFO] [stderr]  --> src/memory/tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::ByteReference;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::Memory`
[INFO] [stderr]  --> src/memory/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::Memory;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordAddressable`
[INFO] [stderr]  --> src/memory/tests.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::WordAddressable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordReference`
[INFO] [stderr]  --> src/memory/tests.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::WordReference;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ByteReference`
[INFO] [stderr]   --> src/memory/mod.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct ByteReference<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WordReference`
[INFO] [stderr]   --> src/memory/mod.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct WordReference<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Memory`
[INFO] [stderr]   --> src/memory/mod.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | struct Memory {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new() -> Memory {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_ref`
[INFO] [stderr]   --> src/memory/mod.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_byte_refs`
[INFO] [stderr]   --> src/memory/mod.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ByteAddressable`
[INFO] [stderr]  --> src/memory/tests.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::ByteAddressable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::ByteReference`
[INFO] [stderr]  --> src/memory/tests.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::ByteReference;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::Memory`
[INFO] [stderr]  --> src/memory/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::Memory;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordAddressable`
[INFO] [stderr]  --> src/memory/tests.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::WordAddressable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::WordReference`
[INFO] [stderr]  --> src/memory/tests.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::WordReference;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ByteReference`
[INFO] [stderr]   --> src/memory/mod.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | struct ByteReference<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(value: &'a mut u8) -> ByteReference<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WordReference`
[INFO] [stderr]   --> src/memory/mod.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct WordReference<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(lower: Box<ByteAddressable + 'a>, upper: Box<ByteAddressable + 'a>) -> WordReference<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Memory`
[INFO] [stderr]   --> src/memory/mod.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | struct Memory {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory/mod.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new() -> Memory {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_ref`
[INFO] [stderr]   --> src/memory/mod.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_ref(&'a mut self, address: u16) -> WordReference {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_byte_refs`
[INFO] [stderr]   --> src/memory/mod.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn get_byte_refs(&'a mut self, address: usize) -> (Box<ByteAddressable + 'a>, Box<ByteAddressable + 'a>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "f0acce9af2ffe80b1b70b8d84369e4df8fbcfcfc09ca799ab5728fe43f38c6e1"`
[INFO] running `"docker" "rm" "-f" "f0acce9af2ffe80b1b70b8d84369e4df8fbcfcfc09ca799ab5728fe43f38c6e1"`
[INFO] [stdout] f0acce9af2ffe80b1b70b8d84369e4df8fbcfcfc09ca799ab5728fe43f38c6e1